#!/bin/bash
is_it_directory()
{
    if [ $# -lt 1 ]; then
        echo "I need an argument"
        return 1
    fi
    if [ ! -d $1 ]; then
        return 2
    else
        return 3
    fi
}

echo -n "enter destination directory:"
read direct
is_it_directory $direct
echo "the result is $?"
